Tom,

If the shorter  shielded cable coiled to be as short as possible does not 
work and you like to tinker, try this:

connect a 0.01 microfarad capacitor across the two audio connections in 
other words, from the audio hot lead to ground which is the shield of the 
cable.

With the  following value capacitor the capacitive reactance will be as 
follows:

at 10 kilohertz = 1.592k Ohms

at 1 megahertz = 15.915 Ohms

As you can see, the capacitor will not short out the audio signal because of 
its 1.5 K ohm value at 10 kilohertz.

At 1 megahertz the capacitor will almost be a short at 15 ohms.

And at higher R.F. frequencies the reactance will be even lower.

I am not sure at which end of the cable this capacitor will work best, you 
experiment.

73's

Howard, #3

----- Original Message ----- 
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, May 08, 2012 2:30 PM
Subject: Interesting RFI Problem


>    Great suggestion, Howard.
>
> Thanks!
>
> Tom Behler: KB8TYJ
>
> ----- Original Message ----- 
> From: "Howard, W A 9 Y B W" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, May 08, 2012 3:12 PM
> Subject: Re: Interesting RFI Problem
>
>
>> Tom,
>>
>> When you try another cable, use as short of one as you can find to reach
>> and
>> if there is excess, coil it up in a small coil and hold it together with
>> bread ties and if it works replace them with cable ties.
>>
>> 73's